Home / 231,078.80-346,618.20-218,248.40

Finding the Fourth Proportional to 231,078.80, 346,618.20 and 218,248.40

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Solution

The fourth proportional to 231,078.80, 346,618.20 and 218,248.40 is: 327,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,078.80 : 346,618.20 = 218,248.40 : x
  2. Step 2: Convert to fraction form
    231,078.80/346,618.20 = 218,248.40/x
  3. Step 3: Cross multiply
    231,078.80x = 346,618.20 × 218,248.40
  4. Step 4: Simplify right side
    231,078.80x = 75,648,867,560.88
  5. Step 5: Solve for x
    x = 75,648,867,560.88/231,078.80
  6. Step 6: Final answer
    x = 327,372.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.